diff --git a/slate/slate.py b/slate/slate.py
index 798c884..d1a4ee3 100644
--- a/slate/slate.py
+++ b/slate/slate.py
@@ -39,6 +39,8 @@ class Slate():
     def __init__(self, runners):
         self.runners = runners
         self.runners['printConfig'] = print_config_runner
+        self.runners['pdb'] = pdb_runner
+        self._version = False
 
     def load_config(self, filename, name):
         config, stack = self._load_config(filename, name)
@@ -140,6 +142,13 @@ class Slate():
         child_keys = '.'.join(keys_arr[1:])
         return self.consume(child, child_keys, default=default, expand=expand, **kwargs)
 
+    def get_version(self):
+        if not self._version:
+            repo = git.Repo(search_parent_directories=True)
+            sha = repo.head.object.hexsha
+            self._version = sha
+        return self._version
+
     def _calc_num_jobs(self, schedC):
         schedulerC = copy.deepcopy(schedC)
         reps = self.consume(schedulerC, 'repetitions', 1)
@@ -160,13 +169,13 @@ class Slate():
             reps_for_job[i % num_jobs].append(i)
         return reps_for_job[job_id-1]
 
-    def run_local(self, filename, name, sha, job_id):
+    def run_local(self, filename, name, job_id):
         config = self.load_config(filename, name)
         schedulerC = copy.deepcopy(config.get('scheduler', {}))
         rep_ids = self._reps_for_job(schedulerC, job_id)
         self._fork_processes(config, rep_ids)
 
-    def run_slurm(self, filename, name, sha):
+    def run_slurm(self, filename, name):
         assert slurm_avaible, 'pyslurm does not seem to be installed on this system.'
         config = self.load_config(filename, name)
         slurmC = self.consume(config, 'slurm', expand=True)
@@ -190,7 +199,7 @@ class Slate():
         job_id = job.submit()
         print(f'[>] Job submitted to slurm with id {job_id}')
         with open('job_hist.log', 'a') as f:
-            f.write(f'{filename}:{name} submitted to slurm with ids {job_id}_0-{num_jobs} on [git:{sha}] at {datetime.datetime.now()}\n')
+            f.write(f'{filename}:{name} submitted to slurm with ids {job_id}_0-{num_jobs} on [git:{self.get_version()}] at {datetime.datetime.now()}\n')
 
     def _fork_processes(self, config, rep_ids):
         schedC = self.consume(config, 'scheduler')
@@ -299,20 +308,17 @@ class Slate():
 
         args = parser.parse_args()
 
-        repo = git.Repo(search_parent_directories=True)
-        sha = repo.head.object.hexsha
-
         print(f'[i] I have job_id {args.job_id}')
-        print(f'[i] Running on version [git:{sha}]')
+        print(f'[i] Running on version [git:{self.get_version()}]')
 
         if args.worker:
             raise Exception('Not yet implemented')
 
         assert args.config_file != None, 'Need to supply config file.'
         if args.slurm:
-            self.run_slurm(args.config_file, args.experiment, sha)
+            self.run_slurm(args.config_file, args.experiment)
         else:
-            self.run_local(args.config_file, args.experiment, sha, args.job_id)
+            self.run_local(args.config_file, args.experiment, args.job_id)
 
 
 def print_config_runner(slate, run, config):
@@ -325,5 +331,9 @@ def print_config_runner(slate, run, config):
         del config[k]
 
 
+def pdb_runner(slate, run, config):
+    d()
+
+
 if __name__ == '__main__':
     raise Exception('You are using it wrong...')